The WHS site looked like it only referee to Heterozygous animals. Scaleless Heads.
From their site:
My concerns are issues with the supers. I've only found 4 reports of full scaleless balls online. And 3 of them perished at a young age.There are two known lines of Scaleless Heads, the BHB line that Mike Wilbanks and Brian Barczyk are currently working with which proved last year to produce a healthy scaleless animal when the gene is in its homozygous form, and the WHS line which at the moment has only been produced in its heterozygous form that is phenotypically IDENTICAL with the BHB line.
Lots of genes across the animal world are safe in the singular but devastating when in the homozygous form. I'm wondering if that is the case with scaleless in regards to ball pythons? We probably won't know for years, 4 snakes is hardly an appropriate sample size. But maybe enough to give pause?
What I am really curious about is BHB. They had to have paired their Scaleless heads together since their first 2 hatched scalelesses. Brian B. Was way too excited not to have. Have they not produced anymore? Or if they have are they keeping it under wraps? If it's the later, why?
I just don't know.